Non-exercise cardiorespiratory fitness (CRF) predictive equation for Malaysian women

Nor Anita Megat Nor Anita, Ruby Husain, Aminuddin Abdul Hamid Karim, Osman Ali

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    The purpose of this study was to develop a predictive equation to estimate CRF from non-exercise parameters in Malaysian women. Available equations are based on Caucasian subjects and may not apply to local women. A total of 158 healthy women aged between 20-64 years were randomly divided into test group (80% of total; n=125) and cross-validation group (20% of total; n=33). Based on the reported inter-relationship between CRF, sociodemography, biophysical, lifestyle and health; data were obtained by interviewer-facilitated questionnaire. CRF measured as VO2peak was extrapolated from the value achieved at 85% maximal heart rate (220-age) while doing an exercise test based on the modified Bruce Protocol. The extrapolated VO2peak obtained from the submaximal test was validated against a maximal test (n=46) which achieved a moderately strong correlation of R=0.76; SEE=4.59. The test group was used to develop a model using stepwise multiple regression procedures. The predicted VO2peak = [(age (yrs) X -0.175) + (height (m) X 28.119) + (ethnicity (0= non-Malay, 1=Malay) X -4.545) + (waist (cm) X -0.154) + 6.858]. The correlation was R= 0.75; SEE = 3.74; p= 0.001. Cross-validation procedures revealed that R= 0.69; SEE= 4.50; p= 0.001. The prediction model indicates that women who are younger, taller, have smaller waist and from the Chinese ethnic group had higher CRF.

    Original languageEnglish
    Pages (from-to)1-16
    Number of pages16
    JournalJournal of Exercise Physiology Online
    Volume13
    Issue number4
    Publication statusPublished - Aug 2010

    Fingerprint

    Exercise Test
    Ethnic Groups
    Life Style
    Heart Rate
    Interviews
    Cardiorespiratory Fitness
    Health
    Surveys and Questionnaires

    Keywords

    • Aerobic fitness
    • Age
    • Asian women
    • Height
    • Waist

    ASJC Scopus subject areas

    • Physiology (medical)

    Cite this

    Nor Anita, N. A. M., Husain, R., Karim, A. A. H., & Ali, O. (2010). Non-exercise cardiorespiratory fitness (CRF) predictive equation for Malaysian women. Journal of Exercise Physiology Online, 13(4), 1-16.

    Non-exercise cardiorespiratory fitness (CRF) predictive equation for Malaysian women. / Nor Anita, Nor Anita Megat; Husain, Ruby; Karim, Aminuddin Abdul Hamid; Ali, Osman.

    In: Journal of Exercise Physiology Online, Vol. 13, No. 4, 08.2010, p. 1-16.

    Research output: Contribution to journalArticle

    Nor Anita, NAM, Husain, R, Karim, AAH & Ali, O 2010, 'Non-exercise cardiorespiratory fitness (CRF) predictive equation for Malaysian women', Journal of Exercise Physiology Online, vol. 13, no. 4, pp. 1-16.
    Nor Anita, Nor Anita Megat ; Husain, Ruby ; Karim, Aminuddin Abdul Hamid ; Ali, Osman. / Non-exercise cardiorespiratory fitness (CRF) predictive equation for Malaysian women. In: Journal of Exercise Physiology Online. 2010 ; Vol. 13, No. 4. pp. 1-16.
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